Coupling



H. TRUST AND F. M. ASHLEY.

1. TRUST, ADMINlSTRATRIX or H. TRUST. uac'o.

COUPLING.

APPLICATION FILED JUNE 16, 1920.

1 421924, Patented Sept. 5, 1922 (June/Winn? Henry Trasfi I, Exam? Mfish/6y Fatented Sept. 5, 1922.

UNITED STATES PATENT OFFICE.

HENRY TRUST, OF PARK RIDGE, NEW JERSEY, AND FRANK M. ASHLEY, 0F BROOK-LYN, NEW YORK; JOSEPHINE TRUST ADMINISTRATRIX OF SAID HENRY TRUST,

DECEASED.

CQUPLING.

Application filed June 16, 1920. Serial No. 389,341.

To all 2.071 cm it may concern Be it known that we, HENRY TRUST, acitizen of the lnited States, and resident of Park Ridge, in the countyof Bergen and State of New Jersey. and FRANK M. ASH- LEY, a citizen ofthe United States, and resident of Brooklyn, in the county of Kings.

or ship is formed integral with the lower shaft.

Referring to the drawings which form a part of this specification:

Figure 1 is a vertical view. partly in sec-.

tion, of a coupling embodying our invention.

Figure 9. is a side view of the portion connected to the upper shaft.

F igure 3 is a cross sectional view showing a modified construction inwhich the key is formed separately instead of integral with one ,of thecoupling elements.

A" and B indicate, respectively, the two interlocking portions of thecoupling and 0' indicates a ring by means of which the parts A and B arelocked together. The portion B is provided with a keyway slot B and theportion A is provided with a key A formed integral and fitting thekeyway B. The exterior surface D of the portions A and B form a circlewhich the interior surface C of the ring C closely contacts in holdingthe portions A and B together. The ring C extends below the lower end Cof the portion A and overlaps the lower end B of the portion B tostrengthen the construction as will be readily understood. A shoulder Eis formed in the upper end of the portion A to support the ring C inposition. A conical part A is formed integral with the portion A and isprovided with a threaded bore A to receive the shaft F. The contactmgsurfaces G and G respectively, are fiat and therefore When the shaft Fis rotated the shaft H is driven. By lifting the ring C, the. portions Aand B may be separated by moving part B laterally relative to the otherpart. The construction is such that the flat surface portions ofelements A and B can be easily finished in a milling machine, or incheap constructions the parts can be cast and thus provided at a veryloW cost. Referring to Figure 3, the portion B is formed with the keywayB but a separate key I is fitted into a recess A formed in the portion Aand extends into said keyway and serves the same function as that servedby the key A, that is, to prevent the portion B from uncoupling bydropping out of the ring C.

Having thus described our invention, we claim as new and desire tosecure by Letters Patent: i

1. A coupling comprising two oppositely disposed portions each having aflat surface adapted to contact with the other and formed on the medianvertical line of the coupling, one of which portions is provided with atransverse keyway formed in said surface and the other having a keyextending into said keyway, and a ring adapted to slidingly engage theexterior surfaces of said portions and hold them together, the saidcoupling portion being of considerably increased diameter relative tothe shaft portions thereof to provide an enlarged contact surfacebetween the coupling members.

2. A coupling comprising two oppositely disposed portions each having aflat surface adapted to contactwith the other and formed on the medianvertical line of the coupling, one of which portions is provided with atransverse keyway formed in said surface and the other having a keyformed integral therewith and extending into said keyway, and a ringadapted to slidingly engage the exterior surfaces of said portions andhold them together, the said coupling portion being of considerablyincreased diameter relative to the shaft portions thereof to provide anenlarged contact surface between the coupling members.

3. A coupling comprising two oppositely disposed portions each having aflat surface extending parallel with its exterior surface and adapted tocontact with the other and Q I amet formed on the median vertical lineof the coupling, one of which portions is provided with a transversekeyway formed in said surface and the other having a key extendin intosaid keyway,.and a ring adapted to sliiingly engage the exteriorsurfaces of sa d portions and hold them together, the said couplingportion being of considerably 1ncreased diameter relative to the shaftportions thereof to provide an enlarged contact surface between thecoupling members.

4. A coupling comprising two oppositely disposed portions each having afiat surface extending parallel with its exterior surface and adapted tocontact with the other and formed on the median vertical line of thecoupling one of which portions is provided with a transverse keywayformed in said surface and the other having a key .formed integraltherewith and extending into said keyway, and a ring adapted to slidingengage the exterior surfaces .of said portions and hold them together,the said coupling portion being of considerably increased diameterrelative to the shaft portions thereof to provide an enlarged contactsurface between the coupling members.

5. A coupling comprising two oppositely disposed portions each having aflat surface adapted to contact with the other and formed on the medianvertical line of the coupling, one of which portions is provided with atransverse keyway formed in said surface and the other having a keyextending into said keyway, and a ring provided with an inwardlextending flange at its upper end and a apted to slidingly engage theexterior surfaces of said portions and hold them together, the saidcoupling portion bein of considerably increased diameter relative to theshaft portions thereof to provide an enlarged contact surface betweenthe coupling members.

6. A coupling comprising two oppositely disposed portions each having afiat surface adapted to contact with the other and formed on the medianvertical line of the coupling, one of which portions is provided with atransverse keyway and the other with a key extending into said keyway,each of said portions having one end formed cylindrical, and a ringencircling said portions and freely movable relative thereto, the saidcoupling portion being of considerably increased diameter relative tothe shaft portions thereof to provide an enlarged contact surfacebetween the coupling members.

7 A coupling comprising two oppositely disposed portions each having aflat surface adapted to contact with the other and formed on the medianvertical line of the coupling, one of which portions is provided with atransverse keyway and the other with a key extending into said keyway,each of said portions having one end formed cylindrical, and a ringhaving an inwardly extending flange at its upper end, said ring freelovable relative thereto, the said coupling portion being of considerablyincreased diameter relative to the shaft portions thereof to provide anenlarged contact surface'between the coupling members.

8. A coupling comprising two oppositely disposed portions each having afiat surface adapted to contact with the other and formed on the medianvertical line of the coupling, one of which portions is provided with atransverse keyway and the other with a key extending into said keyway,each of said portions having one end formed cylindrical, and a ringencircling said cylindrical end portions and freely movable relativethereto, the said coupling portion bein of considerably increaseddiameter relative to the shaft portions thereof to provide an enlargedcontact surface between the coupling members.

9. A coupling comprising two oppositely disposed portions each having aflat surface adapted to contact with the other and formed on the medianvertical line of the coupling, one of which portions is provided with atransverse keyway and the other with a key extending into said keyway,each of said portions having one end formed cylindrical, and a ringencircling said cylindrical end portions and freely movable relativethereto and a shaft formed integral with one of said portions, the saidcoupling portion being of considerably increased diameter relative tothe shaft portions there-

